211343212 has 12 divisors (see below), whose sum is σ = 373664200. Its totient is φ = 104582016.

The previous prime is 211343183. The next prime is 211343267. The reversal of 211343212 is 212343112.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 211343212.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271962 + ... + 272737.

Almost surely, 2^211343212 is an apocalyptic number.

It is an amenable number.

211343212 is a deficient number, since it is larger than the sum of its proper divisors (162320988).

211343212 is a wasteful number, since it uses less digits than its factorization.

211343212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544800 (or 544798 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 211343212 is about 14537.6480903893. The cubic root of 211343212 is about 595.6567960845.

Adding to 211343212 its reverse (212343112), we get a palindrome (423686324).

The spelling of 211343212 in words is "two hundred eleven million, three hundred forty-three thousand, two hundred twelve".